setFocusPoint method
Implementation
@override
Future<void> setFocusPoint(Offset point) {
assert(point.dx >= 0 && point.dx <= 1);
assert(point.dy >= 0 && point.dy <= 1);
return methodChannel.invokeMethod<void>(
'setFocusPoint',
<String, dynamic>{
'x': point.dx,
'y': point.dy,
},
);
}